Oil-burner.



W. S. QUIGLEY.

I OIL BURNER. I APPLICATION FILED 00131, 1912,

Patented July 21, 1914.

$31 Z mtomau 8 vwa ntoz 5. 0

forced into central bore 7, of fitting 8,

"WIRE S. QUIGLEY, 0F ROCKAWAY PARK, NEW YORK.

OIL-BURNER.

To all whom it may concern Be it known that I, TIRT S. Qniennr, a citizen of the United States of America. residing at Rockaway Park, county of Queens, State of New York, have invented certain new and useful Improvements in Oil-Burners, of which the following is a specification.

My inventionrelates to oil burning apparatus and comprises an improved form of spraying nozzle for use in such burners.

Attempts have heretofore been made to produce a burner for oilconsuniing furnaces in which the oil is sprayed into the combustion chamber by a mechanical atomizing action due to centrifugal force which separates a fine whirling stream of oil issuing from a nozzle under pressure into. small globules or molecules. The dilliculty with this type of apparatus has been that the heat carbonized the oil in the jet apparatus and soon the fine opening from which the jet issued was choked with carbon and the device became inoperative.

I haveovercoine this dii'iiculty by the present invention which comprises an eiiicient iicedling device combined with such jet pro ducing apparatus whereby the fine discharge opening may beleasily cleared of deposited material as often as is necessary.

The best form of a paratus embodying my invention at present known to me is illus trated in the accompanying sheet of drawingsin which,

Figure 1 is a longitudinal section of the apparatus with parts broken away. Fig. 2, is a detailed side view' of the needle operating apparatus, and Fig. 3 is a cross section on line 3, 3, of Fig. 1.

Throughout the drawings like reference Specification of Letters Patent.

characters indicate like parts.

' 1 is a metal tube having fitting 2, screwed into one end and spraying head 3, screwed into the other end. 4 is the oil inlet to said tube, 5 is a smaller tube in main tube 1, one end of which is forced into the central chamber 6, of head 3, while the other is (which is screwed into fitting 52) forming an oil tight oiiit therewith.

The head 3, has a threaded button 9, separated from the head proper by annular groove 10, which annular groove forms an annular chamber when the button 9 is screwed into tube 1, so as to bring head 3,

up against the end of tube 1, as shown in .lateiited July 2i,

Application filed October 31, 1912. Serial No. 728,910.

Big. 1. This annular chamber is coni'iccted byline holes ll through button 9. with the ference of said chamber 0, or parallel to tangents thereto, and considerably olisct from the center.

13 is the jet opening in the center of head 3, communicating with the center oi" chamber 6. The total area of cross section of holes 12 must be at least equal to or greater than, the area of cross section of open- 111g 13.

A needle point 14 is set in the end of rod 15, in line with jet opening 13. Rod 15 c1 tends through inner tube 5, through a stuttingbox 16, in fitting 8, and into skeleton housing 17, to which it fastened by screw 18. This housing 17 r t"tcs on fitting 8. within the limits permitted by helical slot l9, in the housing engaging radial pin 20, set in the fitting; 21, is a weighted crank fastened to housing 17, by setscrcw 22.

In operation, oil under high pressure is supplied through supply connection 4-, passes through perforations 11 and 1:2, in head 3', and enters central chamber 6, in tangential streams of high velocity. This gives a rapid whirling motion to the oil in chamber 6, and to the jet which issues fK'Oi' it through opening 13. Consequently 1 particles of oil forming the jet fly apart by centrifugal action into a spray as soon as they are free from the restraining influence of the walls of jet opening 13, and form a coi'nbustible mixture with the surrounding air. This combustible mixture-is ignited by the heat of the combustion chamber (not shmvnlinto which it is introduced. Whenever the checking of this combustion shows that the supply of oil is being reduced by filling up of the jet opening 18, a quarter turn of crank handle 21, will, by co-action of slot' 19 and pin 20, force housing 1?, rod 15 and needle 14 forward so that the needle is rojected into, and cleans, jet open ing 13. ii releasing the handle its weight ed end causes it to drop down, automatically withdrawing the needle from the jet opening and permitting the spraying device to resume full action.

The advantages of invention arise from the fact that it is vasti more econoini-- cal in power consumption to pump the small. volume of oil under pressure necessary to a 1,104,3ec

producethe whirling mechanical spray, thanfto pump the larger-volume of air under the pressure necessary to produce an 'atomizing of the oil, as in the ordinary type of burner. The combination of the needling device With this mechanical atomizer makes it possible to use it continuously overcoming the disabling effect of the carboiiized oil, which has heretofore rendered such atomizers impracticable.

Having, therefore, described my invention, I claim:

An oil spraying device for use as an oil burner comprising in combination a tube for supplying the oil, a nozzle therefor consisting of a head having a central bore and a fine perforation axially thereof, serving as a discharge orifice, an outer annular cutaway portion and a series of perforations through the inner flange so formed and through the shell left surrounding the central bore, the perforationsthrough said shell being approximately tangential to the circumierence of the bore and considerably larger in area of cross section than the be fore described discharge orifice, together with a tube and stul'ling box closing the in ner end of the axial bore, a needle mounted in said tube in line with the discharge orifice and means for manually projecting and Withdrawing said needle quickly through and from said discharge orifice.

- WIRT S. QUIGLEY. Nitnesses:

A. PARKER-SMILE, M. G. CRAWFORD. 

